Off topic testing mail server config

[kenny@xxxxxxxxxxxxx (Kenny Hitt)]

Hi.  I remember I used to be able to do
telnet mail-abuse.org and the sight would test my 
mail server config to see if I was able to relay.  For some reason,
that doesn't seem to work now.  Does anyone know of a good way to test
my server config.  I recently upgraded to exim version 4 and I think
my config has been broken during the upgrade.

Thanks in advance.
          Kenny